TS2019 is difficult when it comes to trees since it breaks so many that were reasonably Ok in TANE and TS2012 and makes for a lot of work when moving...
Click on settings (its by the log out button) > under My Settings, click on Edit Profile > where it says Custom User Title, type in anything you want...
Not at the moment . It had been my goal to release an update to it back in October or November . But I lost all the work and more due to a mistake ....